Apple Macintosh PowerBook 150 - Manual (Page 96)

Using the RAM disk
When you work with the files on your RAM disk, you save battery power
because you avoid using the PowerBook hard disk.
Once you have set up a RAM disk, follow these steps to use it:
1 Open the application programs and files on the RAM disk while your PowerBook is
plugged into the power adapter.
Using the power adapter saves your battery.
2 Put your PowerBook to sleep before you begin working with your programs or files.
3 Unplug the power adapter.
4 While you are using the battery, avoid using any files that are not on the RAM disk.
WARNING If the computer “crashes” due to temporary software
problems, you will lose any work on your RAM disk that you have not
saved to the hard disk. In deciding how often you want to save to the
hard disk, you should weigh the risk of losing your work against the
battery savings.
88 Chapter 7